Container closure having a thumb tab



FIG. 1 is a perspective view of a container closure having a thumb tab in accordance with our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a rear elevational view thereof.

The broken lines in the figures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a container closure having a thumb tab, as shown and described. 